Alternative file manager for Windows7

Whilst browsing, I came across this little gem.
It works 100% in Windows 7 64Bit.
It took me about 15 minutes to set it up to my liking - there are a lot of customistaion features.
Only vulnerability for the unwary users - it opens up all the system folders, including junctions such as "Documents and settings". It could be fatal for your OS to start digging in those.

http://www.softwareok.com/?seite=Freeware/Q-Dir

Interesting app! I seem to spend half of my day with Windows Explorer open in the background, so I'll give this a shot and see if it works any better